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Hidetsugu Ikeda

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Melody alarm timepiece
    • Patent number 5,452,270
    • Issue date Sep 19, 1995
    • Seikosha Co., Ltd.
    • Hidetsugu Ikeda
    • G04 - HOROLOGY
  • Information Patent Grant

    Clock movement
    • Patent number D335098
    • Issue date Apr 27, 1993
    • Seikosha Co., Ltd.
    • Hidetsugu Ikeda
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Power supply device for hand with luminescence element
    • Patent number 4,995,022
    • Issue date Feb 19, 1991
    • Seikosha Co., Ltd.
    • Hidetsugu Ikeda
    • G01 - MEASURING TESTING